Nut-lock.



A. TOBVIK.

NUT LOOK.

APPLICATION FILED 00'1.16, 1911.

Patented Mar. 18, 1913.

gwuewtoz WQM m am mic 0mm i UNITED STATES PATENT OFFICE.

ALFRED TORVIK, OF DELORO, ONTARIO, CANADA, ASSIGNOR OF ONE-FOURTH TOEDGAR NEW'LANDS HOWELL, 0F MONTREAL, QUEBEC, CANADA, AND ONE-FOURTH TOTHORMOD MELVAER, 0F DELORO, ONTARIO, CANADA.

NUT-LOCK.

do hereby declare that the following is a full,

clear, and exact description of the same.

The invention relates to improvements in nut locks, as described in thepresent specification and illustrated in the accompanying drawings thatform part of the same.

The invention consists essentially in the novel means employed inlooking a plate having one or more squared holes therethrough to one ofthe pieces through which the bolts extend,

The objects of the invention are to prevent the loosening of the nutssubsequent to their being turned to their home position, to facilitatethe removal of the lock whereby said nuts may be further tightened onthe bolts and relocked, and generally to devise a simple, cheap anddurable nut look.

In the drawings, Figure 1 is a perspective view of the ends of tworailway rails, secured together in the usual manner by bolts extendingthrough fish plates and showing the nuts on the ends of said boltslocked by this invention. Fig. 2 is a perspective detail of the lockingplate. Fig. 3 is a perspective detail of the fish plate. Fig. 41 is aperspective detail of the locking bolt. Fig. 5 is a horizontal sectionof a slightly modified arrangement.

Like numerals of reference indicate corresponding parts in each figure.

Referring to the drawings particularly Figs. 1, 2, and 3, 1 and 2 arethe rail ends, meeting at the joint 3 and having the usual bolt holestherethrough and an additional tongue hole t which may be similar to anyof the bolt holes, in fact this can be just an additional hole beyondthe usual fish plates.

5 and are fish plates having holes corresponding to the holes in therail end and adapted to fit to the rails.

11 is the locking plate having the squared holes 12 therethrough in alongitudinally arranged row, said plate terminating at one end in thehook shaped tongue 13 and at the other end in the inwardly bent ends 14Specification of Letters Patent.

Application filed October 16, 1911.

Patented Mar. 18, 1913.

sci-m1 No. 654,813.

separated by the central slot 15, said ends being preferably knocked upfrom the inner side.

16 are bolts extending through the bolt holes in the plate 6, the fishplate 5 and the rails 1 and 2 and through the square holes 12 in thelocking plate, 11.

'17 are nuts secured on the ends 01 the bolts and normally containedwithin the square holes 12 in their locked position 011 said bolts.

18 is a locking bolt having the head 19 and the bent shank 20, said bolt18 being inserted through the locking bolt hole 8 in the plate 6 andthrough a corresponding hole in the web of the rail-end 1 and fish plate5 or simply through the rail into and through the slot 15, the bentshank 20 being knocked over an end 14 and thus secured in position fromthe raised nature of said end.

In the modified form shown in Fig. 5, 6 is a fish plate having boltholes 7 corresponding to holes 7 of fish plate 6. S is a locking bolthole in one end of fish plate 6, 9 a tongue hole at the other end of 6and 10 is a recess extending from the tongue hole 9 to the end.

In the use of this nut lock, the rail ends are first brought together ascustomary and the bolts inserted through the plate (5, the adjacentfishplate, the web of the rail and the fish plate on the other side andthenuts arethen screwed home on the projecting ends of the bolts. Thetongue 13 of the locking plate 11 is then inserted through a hole in theweb of the rail 2 and where the particular fish plate is used, into thetongue hole 9, the end of said tongue turning in the recess 10 on theplacing of the plate 11 over the nuts 17, said nuts extending into thesquared holes 12. The locking bolt 18 is then inserted through the railinto and through the slot 15 and then turned over a raised end 1 1 asexplained.

In further explaining the use of this invention, itcan be said thatlooking plate 11 may be finished as shown with a slot on one end and atongue on the other, or both ends may be provided with a slot 15 andoutwardly extending arms 11 thus eliminating the tongue altogether, andusing a second bolt 18 to fasten plate 11 to the web of the rail. In theone case, a particular kind of fish plate is used, while in the other,the ordinary fish plates are used.

It will be readily seen that for the ordinary fish plate the lockingplate extends around the end of the'fish plate at each end and fits intothe web of the rail so that at one end a tongue hooks into a hole in therail, while at the other end the locking bolt projects through the railinto the slot and turns over the raised part.

' This invention has been described as pert aining to railway rails, butit must be understood that With a very slight 1nodifica tion it may beused for locking nuts on the ends of bolts which are used to join various'pieces of metal or other material together. Further, the lockingplate 11, as well as being bent in at one end to fit into the web of therail, preferably has a longitudinal inturned flange 21 so that while theflange 21 engages the upper side of the fish plate, the lower straightedge of the said plate 11 engages at the bend of the fish plate.

What I claim as my invention is:

1. In a nut look, a locking plate having a squared hole therethrough,said plate terminating at one end in a bent tongue and having the otherend forked defining a slot, the ends thus formed being raised slightlyon their outer side, and a locking bolt having a bent shank adapted tofit into said slot and turn over one of the said forked ends.

'2. In a nut look, a locking plate having a plurality of squared holestherethrough, said plate terminating at one. end in a bent tongueadapted to pass through and be supported from the opposite side of anadjacent piece, the other end of said plate having forked ends defininga slot, said forked ends being raised and a locking bolt having a bentshank adapted to turn over one of said forked ends.

3. In a nut look, a locking plate ha \ing a plurality of squared holestherethrough, said plate terminating at one end in a bent tongue adaptedto pass through and be supported from the opposite side of an adjacentpiece, the other end of said plate having forked ends, said forked endsbeing raised and a locking bolt adapted to pass through and be supportedfrom the opposite side of an adjacent piece and having a bent shankadapted to turn over one of said raised ends.

Signed at the city and district of Montreal, Quebec, Canada, this fourthday of October, 1911.

ALFRED TORVIK.

Vitnesses G. H. TRESIDDER, 112N1 1 O. PioEoN.

Copies of this patent may be obtained for iive cents each, by addressingthe Commissioner of latents, Washington, D. C.

